Advance Your Career in Natural Refrigeration

Advance your career in natural refrigeration with IIAR’s Academy of Natural Refrigerants. These courses provide practical, standards-based training to support safe operation, compliance, and professional development.

About the Academy of Natural Refrigerants (ANR)

The Academy of Natural Refrigerants (ANR) is IIAR’s professional training program dedicated to natural refrigeration. Designed for engineers, technicians, and industry professionals, ANR courses provide practical, standards-based knowledge to help you design, operate, and maintain safe and efficient systems.

Through industry-recognized certification, ANR supports career advancement, regulatory compliance, and continuing professional development.

What You’ll Gain

Industry-recognized certification based on IIAR standards
Practical, real-world knowledge you can apply immediately
Professional Development Hours (PDH) for engineers
Improved safety, compliance, and system performance
Skills to advance your career in industrial refrigeration

Target Audience

Engineers designing natural refrigeration systems
Technicians responsible for operation and maintenance
Facility managers overseeing compliance and safety
Industry professionals looking to expand their expertise

How It Works

Enroll in a course
Complete self-paced training modules
Pass quizzes and final exam
Earn your ANR certificate

All courses are online and designed to fit your schedule.

Most certificate courses are approved for IIAR PDH, and several are also eligible for RCEP credit. Below is a simplified overview of the current course offerings.

Featured Courses

Piping Handbook Chapter 1 Certificate Course

Self-Paced Online Course

Learn the fundamentals of ammonia pipe sizing using pressure drop principles, velocity, mass flow, and practical application examples from Chapter 1 of the Ammonia Piping Handbook.

Course Description

This self-paced certificate course introduces the fundamentals of closed-circuit ammonia refrigeration system pipe sizing using pressure drop principles. Participants will learn how line sizing is influenced by temperature change, pressure drop, velocity, mass flow, and nomographs.

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CO2-2021 Standard Certificate Course

Self-Paced Online Course

Safety Standard for Closed Circuit Carbon Dioxide Refrigeration Systems.

Course Description

This Certificate Class covers the consensus ANSI/IIAR Safety Standard for Closed Circuit Carbon Dioxide Refrigeration Systems dated 2021. This standard specifies the minimum requirements for the safe design, safe installation, startup, inspection, testing, and maintenance (ITM) of closed-circuit carbon dioxide refrigeration systems and modifications thereof.

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